List of top Chemistry Questions on p -Block Elements asked in JEE Main

$\textbf{Choose the correct statements about the hydrides of group 15 elements.}$
A. The stability of the hydrides decreases in the order $\text{NH}_3 > \text{PH}_3 > \text{AsH}_3 > \text{SbH}_3 > \text{BiH}_3$
B. The reducing ability of the hydrides increases in the order $\text{NH}_3 < \text{PH}_3 < \text{AsH}_3 < \text{SbH}_3 < \text{BiH}_3$
C. Among the hydrides, $\text{NH}_3$ is a strong reducing agent while $\text{BiH}_3$ is a mild reducing agent.
D. The basicity of the hydrides increases in the order $\text{NH}_3 < \text{PH}_3 < \text{AsH}_3 < \text{SbH}_3 < \text{BiH}_3$
Choose the most appropriate from the option given below:

Identify the correct statements about p-block elements and their compounds.
(A) Non metals have higher electronegativity than metals.
(B) Non metals have lower ionisation enthalpy than metals.
(C) Compounds formed between highly reactive nonmetals and highly reactive metals are generally ionic.
(D) The non-metal oxides are generally basic in nature.
(E) The metal oxides are generally acidic or neutral in nature.

$\textbf{Reduction potential of ions are given below:}$
\[ \begin{array}{ccc} \text{ClO}_4^- & \text{IO}_4^- & \text{BrO}_4^- \\ E^\circ = 1.19 \, \text{V} & E^\circ = 1.65 \, \text{V} & E^\circ = 1.74 \, \text{V} \\ \end{array} \]
The correct order of their oxidising power is:

The number of oxygen atoms present in chemical formula of fuming sulphuric acid is _______.

Match List I with List II

LIST I		LIST II
A	X_eF₄	I	See-saw
B	SF₄	II	Square planar
C	NH₄+	III	Bent T-shaped
D	BrF₃	IV	Tetrahedral

Choose the correct answer from the options given below :

The total number of acidic oxides from the following list is: $NO , N _2 O , B _2 O _3, N _2 O _5$, $CO , SO _3, P _4 O _{10}$

Match List I with List II

LIST I Elements		LIST II Colour imparted to the flame
A	K	1	Brick Red
B	Ca	2	Violet
C	Sr	3	Apple Green
D	Ba	4	Crimson Red

Choose the correct answer from the options given below:

Match List I with List II

LIST I		LIST II
A	Chlorophyll	1	$Na _2 CO _3$
B	Soda ash	2	$CaSO _4$
C	Dentistry, Ornamental work	3	$Mg ^{2+}$
D	Used in white washing	4	$Ca ( OH )_2$

Compound A reacts with $NH _4 Cl$ and forms a compound B Compound B reacts with $H _2 O$ and excess of $CO _2$ to form compound $C$ which on passing through or reaction with saturated $NaCl$ solution forms sodium hydrogen carbonate Compound $A , B$ and $C$, are respectively

Given below are two statements, one is labelled as Assertion $A$ and the other is labeled as Reason $R$
Assertion A : The alkali metals and their salts impart characteristic colour to reducing flame
Reason R : Alkali metals can be detected using flame tests
In the light of the above statements, choose the most appropriate answer from the options given below

Given below are two statements, one is labelled as Assertion $A$ and the other is labelled as Reason $R$
Assertion A: Beryllium has less negative value of reduction potential compared to the other alkaline earth metals
Reason R: Beryllium has large hydration energy due to small size of $Be ^{2+}$ but relatively large value of atomization enthalpy
In the light of the above statements, choose the most appropriate answer from the options given below

Compound A reacts with $NH _4 Cl$ and forms a compound B.

Compound B reacts with $H _2 O$ and excess of $CO _2$ to form compound $C$ which on passing through or reaction with saturated $NaCl$ solution forms sodium hydrogen carbonate Compound $A , B$ and $C$, are respectively.

Which one among the following metals is the weakest reducing agent?

Incorrect statement about Borazine is:

Sum of $\pi$-bonds present in peroxodisulphuric acid and pyrosulphuric acid is___________

If the formula of borax is $Na_2B_4Ox(OH)y.zH_2O$ , Find the value of x + y + z.

Which of the following represents the correct order of metallic character of the given elements?

Match List I with List II Column I(Molecule/ions)Column III (No of lone pairs of $e^-$ on central metal atom)A$ IF_7$iThreeB$ICl_4^-$iiOneC$XeF_6$iiiTwoD$ XeF_2 $ivZero Choose the correct answer from the options given below:

The Lewis acid character of boron tri halides follows the order :

$H_2O_2$ behave like reducing agent in which of the following reactions:

Total number of acidic oxides among $N_2O_3,NO_2, N_2O,Cl_2O_7,SO_2,CO,CaO,Na_2O$ and NO is ____ .

S₁: Be⁺² has higher SRP than other alkaline earth metals.
S₂: Be⁺² has higher hydration energy and greater △aH (atomisation enthalpy) than other alkaline earth metals.

Which one among the following metals is the weakest reducing agent?

$Xef_4 + Sbf_5 → [XeFm]^{+n} [SbFp]^{q-}$. Find the value of m + n + p+ qũ?

Mg(NO₃)₂. XH₂O and Ba(NO₃)₂.YH₂O, represent formula of the crystalline forms of nitrate salts. Sum of X and Y is _____________ .

List of top Chemistry Questions on p -Block Elements asked in JEE Main

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